Baxi EcoBlue Advance Heat 13 Manual

7219719 - 01 (04/15)
United Kingdom
EcoBlue Advance Heat
13 - 16 - 19 - 25 - 30
Gas Fired Wall Mounted Condensing Boiler
Installation and Service Manual
These instructions include the Benchmark Commissioning Checklist and should be left with the user for safe keeping. They must be read in conjunction with the Flue Installation
Guide.
page 1
Model Range
Baxi EcoBlue Advance 13 Heat ErP
G.C.No 41 470 34
Baxi EcoBlue Advance 16 Heat ErP
G.C.No 41 470 35
Baxi EcoBlue Advance 19 Heat ErP
G.C.No 41 470 36
Baxi EcoBlue Advance 25 Heat ErP
G.C.No 41 470 37
Baxi EcoBlue Advance 30 Heat ErP
G.C.No 41 470 38
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Building Regulations and the Benchmark Commissioning Checklist
Building Regulations (England & Wales) require notification of the installation of a heating appliance to the relevant Local Authority Building Control Department.
This can be achieved via a Competent Persons Self Certification Scheme as an option to notifying the Local Authority directly.
The Health & Safety Executive operates the "Gas Safe Register", a self certification scheme for gas heating appliances.
This company is a member of the Benchmark initiative and fully supports the aims of the programme. Its aim is to improve the standards of installation and commissioning of
central heating systems in the UK and to encourage the regular servicing of all central heating systems to ensure safety and efficiency.
Building Regulations require that installations should comply with manufacturer's instructions. It is therefore important that the commissioning checklist is completed by the
installer. The relevant section of Building Regulations only relates to dwellings. Therefore the checklist only applies if the appliance is being installed in a dwelling or some related
structure.
The flowchart below gives guidance for installers on the process necessary to ensure compliance with Building Regulations.
The Benchmark Scheme
Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers are provided with the correct equipment for their needs, that it is
installed, commissioned and serviced in accordance with the manufacturers instructions by competent persons and that it meets the requirements of the appropriate Building
Regulations. The Benchmark Checklist can be used to demonstrate compliance with Building Regulations and should be provided to the customer for future reference.
Installers are required to carry out installation, commissioning and servicing work in accordance with the Benchmark Code of Practice which is available from the Heating and
Hotwater Industry Council who manage and promote the Scheme. Visit www.centralheating.co.uk for more information.
© Baxi Heating UK Ltd 2015 All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, or stored in any retrieval system of any
nature (including in any database), in each case whether electronic, mechanical, recording or otherwise, without the prior written permission of the copyright owner, except for
permitted fair dealing under Copyrights, Designs and Patents Act 1988.
Applications for the copyright owners permission to reproduce or make other use of any part of this publication should be made, giving details of the proposed use, to the following
address:
The Company Secretary, Baxi Heating UK Limited, Brooks House, Coventry Road, Warwick. CV34 4LL
Full acknowledgement of author and source must be given.
WARNING: Any person who does any unauthorised act in relation to a copyright work may be liable to criminal prosecution and civil claims for damages.
You have just purchased one of our appliances and we thank you for the trust you have placed in our products. Please note that the product will provide good service for a longer
period of time if it is regularly checked and maintained. Our customer support network is at your disposal at all times.
page 2
Installer Notification Guidelines
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page 3
Contents
1 Introduction
1.1 General
1.2 Additional Documentation
1.3 Symbols Used
1.4 Abbreviations
1.5 Extent of Liabilities
1.5.1 Manufacturers Liability
1.5.2 Installers Liability
1.6 Homologations
1.6.1 Certifications
1.6.2 Directives
1.6.3 Standards
2 Safety
2.1 General Safety Instructions
2.2 Recommendations
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2.3 Specific Safety Instructions
2.3.1 Handling
3 Technical Specifications
3.1 Technical Data
3.2 Technical Parameters
3.2 Dimensions and Connections
3.3 Electrical Diagram
4 Description of the Product
4.1 General Description
4.2 Operating Principle
4.3 Main Components
4.4 Control Panel Description
4.4.1 User Interaction Controller
4.5 Standard Delivery
4.6 Accessories & Options
4.6.1 Optional Extras
5 Before Installation
5.1 Installation Regulations
5.2 Installation Requirements
5.2.1 Gas Supply
5.2.2 Electrical Supply
5.2.3 Hard Water Areas
5.2.4 Bypass
5.2.5 System Control
5.2.6 Treatment of Water Circulating Systems
5.2.7 System Details - General
5.2.8 Low Head Installation / Open
5.2.9 Sealed Systems Details
5.3 Choice of the Location
5.3.1 Location of the Appliance
5.3.2 Data Plate
5.3.3 Bath & Shower Rooms
5.3.4 Ventilation
5.3.5 Condensate Drain
5.3.6 Clearances - Access in Service
5.3.7 Flue / Chimney Location
5.3.8 Horizontal Flue / Chimney Systems
5.3.9 Flue/Chimney Trim
5.3.10 Terminal Guard
5.3.11 Flue/Chimney Deflector
5.3.12 Flue/Chimney Accessories
5.3.13 In Case Rear Flue
5.4 Unpacking & Initial Preparation
5.4.1 Unpacking
5.4.2 Initial Preparation
5.4.3 Making the Water Connection
5.4.4 Filling the Condensate Trap
5.4.5 Connecting the Condensate Drain
5.4.6 Connecting the Gas Supply
6 Installation
6.1 Air Supply / Flue Gas Connections
6.1.1 Connecting the Top Flue
6.1.2 Connecting the 'In Case' Rear Flue
6.2 Electrical Connections
6.2.1 Electrical Connections of the Appliance
6.2.2 Connecting External Devices
6.3 Filling the System
6.4 Completing the Installation
6.4.1 Completion
7 Commissioning
7.1 General
7.2 Checklist before Commissioning
7.2.1 Preliminary Electrical Checks
7.2.2 Checks
7.3 Commissioning Procedure
7.4 Gas Settings
7.4.1 'Chimney Sweep' Mode
7.4.2 'Chimney Sweep' Mode - Combustion Check
7.5 Configuring the System
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7.5.1 Check the Operational (Working) Gas Inlet Pressure & Gas Rate
7.6 Final Instructions
8 Operation
8.1 General
8.2 Start-Up
8.3 Shutdown
8.4 Use of the Control Panel
8.5 Frost Protection
9 Settings
9.1 Parameters
10 Maintenance
10.1 General
10.2 Standard Inspection & Maintenance Operation
10.3 Specific Maintenance Operation
10.3.1 Spark Ignition Electrode
10.3.2 Automatic Air Vent
10.3.3 Condensate Trap
10.3.4 Removal of Ducts
10.3.5 Pressure Switch (25 & 30 only)
10.3.6 Flow Temperature Sensor
10.3.7 Overheat Sensor
10.3.8 Return Temperature Sensor
10.3.9 Parameter Unit
10.3.10 Gas Valve
10.3.11 Control & Fan Assembly
10.3.12 User Interaction Controller
10.3.13 Setting the Gas Valve (CO2Check)
11 Troubleshooting
11.1 Error Codes - Auto Reset
11.2 Lockout Condition
12 Decommissioning Procedure
12.1 Decommissioning Procedure
13 Spare Parts
13.1 General
13.2 Spare Parts List
Benchmark Commissioning Checklist
page 4
page 5
page 6
1 Introduction
1.1 General
WARNING
Installation, repair and maintenance must only be carried out only by a competent person.
This document is intended for use by competent persons,
All Gas Safe registered engineers carry an ID card with their licence number and a photograph. You can check your engineer is registered by telephoning 0800 408 5500 or online
at www.gassaferegister.co.uk
This appliance must be installed in accordance with the manufacturers instructions and the regulations in force. If the appliance is sold or transferred, or if the owner moves
leaving the appliance behind you should ensure that the manual is kept with the appliance for consultation by the new owner and their installer. Read the instructions fully before
installing or using the appliance.
In GB, this must be carried out by a competent person as stated in the Gas Safety (Installation & Use) Regulations (as may be amended from time to time).
Definition of competence: A person who works for a Gas Safe registered company and holding current certificates in the relevant ACS modules, is deemed competent.
In IE, this must be carried out by a competent person as stated in I.S. 813 "Domestic Gas Installations".
The addition of anything that may interfere with the normal operation of the appliance without express written permission from the manufacturer or his agent could invalidate the
appliance warranty. In GB this could also infringe the Gas Safety (Installation and Use) Regulations.
The appliance is designed as a boiler for use in residential domestic environments on a governed meter supply only. The selection of this boiler is entirely at the owners risk. If the
appliance is used for purposes other than or in excess of these specifications, the manufacturer will not accept any liability for resulting loss, damage or injury.
The manufacturer will not accept any liability whatsoever for loss, damage or injury arising as a result of failure to observe the instructions for use, maintenance and
installation of the appliance.
WARNING
Check the information on the data plate is compatible with local supply conditions.
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1.2 Additional Documentation
These Installation & Service Instructions must be read in conjunction with the Flue Accessories & Fitting Guide supplied in the Literature Pack.
Various timers, external controls, flue accessories, etc. are available as optional extras. Full details are contained in the relevant sales literature.
1.3 Symbols Used
In these instructions, various levels are employed to draw the user's attention to particular information. In so doing, we wish to safeguard the user's safety, prevent hazards and
guarantee correct operation of the appliance. Each level is accompanied by a warning triangle
DANGER
Risk of a dangerous situation causing serious physical injury.
WARNING
Risk of a dangerous situation causing slight physical injury.
CAUTION
Risk of material damage.
Signals important information .
Signals a referral to other instructions or other pages in the instructions.
1.4 Abbreviations
DHW: Domestic hot water
CH: Central heating
GB: Great Britain
IE: Ireland
BS: British standard
HHIC: Heating and Hotwater Industry Council
CSM: Chimney Sweep Mode
PU: Parameter Unit
PCB: Printed Circuit Board
Pn: Nominal output
Qn: Nominal heat input
Hs: Gross calorific value
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1.5 Extent of Liabilities
1.5.1 Manufacturer's Liability
Our products are manufactured in compliance with the requirements of the various European applicable Directives. They are therefore delivered with marking and all
relevant documentation. In the interest of customers, we are continuously endeavouring to make improvements in product quality. All the specifications stated in this document are
therefore subject to change without notice.
The manufacturer will not accept any liability for loss, damage or injury arising as a result of:-
Failure to abide by the instructions on using the appliance.
Failure to regularly maintain the appliance, or faulty or inadequate maintenance of the appliance.
Failure to abide by the instructions on installing the appliance.
This company declares that no substances harmful to health are contained in the appliance or used during appliance manufacture.
The appliance is suitable only for installation in GB and IE and should be installed in accordance with the rules in force, and only used in a suitably ventilated location.
In GB, the installation must be carried out by a Gas Safe Registered Installer. It must be carried out in accordance with the current and relevant requirements of legislation and
guidance including the:-
Gas Safety (Installation & Use) Regulations.
The appropriate Building Regulations either The Building Regulations, The Building Regulations (Scotland), Building Regulations (Northern Ireland).
The Water Fittings Regulations or Water Byelaws in Scotland.
The Current I.E.E. Wiring Regulations.
Where no specific instructions are given, reference should be made to the relevant British Standard Code of Practice.
In IE, the installation must be carried out by a competent person and installed in accordance with the current edition of I.S. 813 "Domestic Gas Installations", the current Building
Regulations and reference should be made to the current ETCI rules for electrical installation.
Prior to commissioning all systems must be thoroughly flushed and treated after installation with inhibitor (see section 5.2.6). Failure to do so will invalidate the
appliance warranty.
Incorrect installation could invalidate the warranty and may lead to prosecution.
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1.5.2 Installer's Responsibility
The installer is responsible for the installation and initial start up of the appliance. The installer must adhere to the following:
Read and follow the instructions given in the manuals provided with the appliance.
Carry out installation in compliance with the prevailing legislation and standards.
Ensure the system is flushed and inhibitor added.
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Install the flue/chimney system correctly ensuring it is operational and complies with prevailing legislation and standards, regardless of location of the boilers installation.
Only the installer should perform the initial start up and carry out any checks necessary.
Explain the installation to the user.
Complete the Benchmark Commissioning Checklist - this is a condition of the warranty !
Warn the user of the obligation to check the appliance and maintain it in good working order.
Give all the instruction manuals to the user.
1.6 Homologations
1.6.1 Certifications
EC - Declaration of Conformity
Baxi Heating Uk Limited being the manufacturer / distributor within the European Economic Area of the following
Baxi EcoBlue Advance Heat ErP declare that the above is in conformity with the provisions of the Council Directive
2009/142 EC 92/42 EEC 2004/108 EC 2006/95 EC
2009/125/EC 2010/30/EU
and has been subject to the following conformity procedures laid down in
Annex 2 - Article 3 of 2009/142 EC
under the supervision of the British Standards Institution, a Notified Body authorized by the United Kingdom Competent Authority, and carrying the Notified Body Number 0086.
1.6.2 Directives
The boiler meets the requirements of Statutory Instrument "The Boiler (Efficiency) Regulations 1993 No 3083" and is deemed to meet the requirements of Directive 92/42/EEC on
the energy efficiency requirements for new hot water boilers fired with liquid or gaseous fuels:-
Type test for purpose of Regulation 5 certified by:
Notified Body 0063.
Product/Production certified by:
Notified Body 0086.
For GB/IE only.
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1.6.3 Standards
Codes of Practice - refer to the most recent version
In GB the following Codes of Practice apply:
Standard Scope
BS 6891 Gas Installation.
BS 5546 Installation of hot water supplies for domestic purposes.
BS EN 12828 Heating systems in buildings.
BS EN 12831 Heating systems in buildings - Calculation of load
BS EN 14336 Installation & commissioning of water based heating systems.
BS 6798 Installation of gas fired hot water boilers.
BS 5440 Part 1 Flues.
BS 5440 Part 2 Ventilation.
BS 7074 Expansion vessels and ancillary equipment for sealed water systems.
BS 7593 Treatment of water in domestic hot water central heating systems.
In IE the following Codes of Practice apply:
Standard Scope
I.S. 813 Domestic Gas Installations.
The following standards give valuable additional information;
BS 5546 Installation of hot water supplies for domestic purposes.
BS EN 12828 Heating systems in buildings.
BS EN 12831 Heating systems in buildings - Calculation of load.
BS EN 14336 Installation & commissioning of water based heating systems.
BS 7074 Expansion vessels and ancillary equipment for sealed water systems.
BS 7593 Treatment of water in domestic hot water central heating systems.
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2 Safety
2.1 General Safety Instructions
DANGER
If you smell gas:
1. Turn off the gas supply at the meter
2. Open windows and doors in the hazardous area
3. Do not operate light switches
4. Do not operate any electrical equipment
5. Do not use a telephone in the hazardous area
6. Extinguish any naked flame and do not smoke
7. Warn any other occupants and vacate the premises
8. Telephone the National Gas Emergency Service on:- 0800 111 999
2.2 Recommendations
WARNING
Installation, repair and maintenance must be carried out by a Gas Safe Registered Engineer
(in accordance with prevailing local and national regulations).
When working on the boiler, always disconnect the boiler from the mains and close the main gas inlet valve.
After maintenance or repair work, check the installation to ensure that there are no leaks.
CAUTION
The boiler should be protected from frost.
Only remove the casing for maintenance and repair operations.
Replace the casing after maintenance and repair operations.
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2.3 Specific Safety Instructions
2.3.1 Handling
General
The following advice should be adhered to, from when first handling the boiler to the final stages of installation, and also during maintenance.
Most injuries as a result of inappropriate handling and lifting are to the back, but all other parts of the body are vulnerable, particularly shoulders, arms and hands. Health &
Safety is the responsibility of EVERYONE.
Before lifting the boiler, the circumstances of the installation must be assessed, please use appropriate manual handling techniques and equipment.
Do not handle or lift unless you feel physically able.
Wear appropriate Personal Protection Equipment e.g. protective gloves, safety footwear etc.
Preparation
Co-ordinate movements - know where, and when, you are both going.
Minimise the number of times needed to move the boiler - plan ahead.
Always ensure when handling or lifting the route is clear and unobstructed. If possible avoid steps, wet or slippery surfaces, unlit areas etc. and take special care on
ladders/into lofts.
Technique
When handling or lifting always use safe techniques - keep your back straight, bend your knees. Don't twist - move your feet, avoid bending forwards and sideways and
keep the load as close to your body as possible.
Where possible transport the boiler using a sack truck or other suitable trolley.
Always grip the boiler firmly, and before lifting feel where the weight is concentrated to establish the centre of gravity, repositioning yourself as necessary. See the
"Installation" section of these instructions for recommended lift points.
Remember
The circumstances of each installation are different. Always assess the risks associated with handling and lifting according to the individual conditions.
If at any time when installing the boiler you feel that you may have injured yourself STOP !! DO NOT "work through" the pain - you may cause further injury.
IF IN ANY DOUBT DO NOT HANDLE OR LIFT THE BOILER - OBTAIN ADVICE OR ASSISTANCE BEFORE PROCEEDING !
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3 Technical Specifications
3.1 Technical Data
Appliance Type C13 C33 C53
Appliance Category CAT I 2H
Heat Input Qn Hs (Gross) Max Min
13 model kW 14.88 8.59
16 model kW 18.32 8.59
19 model kW 21.75 8.59
25 model kW 28.62 8.59
30 model kW 34.35 8.59
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Heat Output Pn
(Non Condensing 70°C Mean Water Temp)
Max Min
13 model kW 13 7.5
16 model kW 16 7.5
19 model kW 19 7.5
25 model kW 25 7.5
30 model kW 30 7.5
Max Gas Rate (Natural Gas - G20)
(After 10 Mins) m3/hr
13 model 1.42
16 model 1.75
19 model 2.07
25 model 2.73
30 model 3.27
Dynamic (nominal) Inlet Pressure
(Natural Gas - G20)
mbar 20
with a CV of 37.78 MJ/m3
Horizontal
Flue Terminal
Dimensions
Diameter - 100mm
Projection - 125mm
Connections
Gas Supply - 22mm
Central Heating Flow (compression
fitting) - 22mm
Central Heating Return (compression
fitting) - 22mm
Condensate Drain - for 21.5mm plastic waste
pipe
Outercase Dimensions
Overall Height Inc Flue Elbow - 790mm
Casing Height - 625mm
Casing Width - 370mm
Casing Depth - 270mm
Clearances
Both Sides 5mm Min
Above Casing (Top Flue) 190mm Min
Above Casing (Rear Flue) 35mm Min
Below Casing (in Cupboard) 35mm Min
Below Casing 120 mm Min
Front (For Servicing) 800mm Min
Front (In Operation) 5mm Min
See Section 5.3.6 for full details !
Weights
Packaged Boiler Carton 21.5 kg
Installation Lift Weight 19.5 kg
CO/CO2Ratio Up to a maximum of 0.004
Flow Temperature (adjustable) 30°C to 80°C (± 5°C)
Recommended System
Temperature Drop Condensing 20°C
NoxClass 5
Electrical Supply 230V~ 50Hz
(Appliance must be connected to an earthed supply)
Power Consumption Max Rate
13 model W 17
16 model W 20
19 model W 23
25 model W 33
30 model W 44
External Fuse Rating 3A
Internal Fuse Rating (Terminal Strip)
Fuse 1.6T
Electrical Protection IPX4D
Water Content litres 1.7
Static Head max 25 metres
Low Head 0.4m min
System Detail fully pumped open vented & sealed
systems
Pressure Switch 13/16/19 Model - Not Fitted
25/30 Model - Fitted
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NOTE: All data in this section are nominal values and subject to normal production tolerances.
Product Characteristics Database (SEDBUK)
SAP 2009 Annual Efficiency
13 model - 89.2% 25 model - 89.1%
16 model - 89.2% 30 model - 89.1%
19 model - 89.2%
This value is used in the UK Governments Standard Assessment Procedure
(SAP) for energy rating of dwellings.
The test data from which it has been calculated has been certified by 0063.
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3.2 Technical Parameters
Technical parameters for boiler space heaters
Baxi EcoBlue Advance Heat ErP 13 16 19 25 30
Condensing boiler Yes Yes Yes Yes Yes
Low-temperature boiler (1) No No No No No
B1 boiler No No No No No
Cogeneration space heater No No No No No
Combination heater No No No No No
Rated heat output Prated kW 13 16 19 25 30
Useful heat output at rated heat output and high temperature regime P4kW 13.0 16.0 19.0 25.0 30.0
Useful heat output at 30% of rated heat output and low temperature regime (1) P1kW 4.3 5.4 6.4 8.4 10.1
Seasonal space heating energy efficiency ns% 93 93 93 93 93
Useful efficiency at rated heat output and high temperature regime (2) n4% 88.0 87.9 87.8 87.7 87.5
Useful efficiency at 30% of rated heat output and low temperature regime (1) n1% 98.0 98.0 98.0 98.0 98.0
Auxiliary electricity consumption
Full load elmax kW 0.017 0.020 0.023 0.033 0.044
Part load elmin kW 0.014 0.014 0.014 0.014 0.014
Standby mode PSB kW 0 0 0 0 0
Other items
Standby heat loss Pstby kW 0.028 0.028 0.028 0.028 0.028
Ignition burner power consumption Pign kW - - - - -
Annual energy consumption QHE kWh
GJ 11183 40 13764 50 16344 59 21506 77 25807 93
Sound power level, indoors LWA dB 32 33 34 37 41
Emissions of nitrogen oxides NOXmg/kWh 18 20 21 24 25
(1) Low temperature means for condensing boilers 30°C, for low t emperature boilers 37°C and for other heaters 50°C return te mperature (at heater inlet).
(2)High temperature regime means 60°C return temperature at heater inlet and 80°C feed temperature at heater outlet.
See the back cover for contact details.
page 15
3.2 Dimensions and Connections
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DIMENSIONS
A625mm
A2 25mm
B270mm
C370mm
D116mm Ø Min.
E165mm
F155mm
G110mm
H550mm
For clearances see Section 5.3.6
NOTE: There must be no part of the air duct (white tube) visible outside the property after installation.
The flue seal should fit neatly and effect a good seal.
IMPORTANT: The 1.5°fall provided by the elbow is to allow condensate to r un back to the boiler, for
disposal through the condensate discharge pipe.
When using extensions the fall along the flue system must be increased to 3°.
Where extensions are used ensure the clearance above the top of the flue elbow (X) is as shown in the
table below:-
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Flue length (Y) Clearance (X)
up to 1m
1m - 2m
2m - 3m
3m - 4m
4m - 5m
5m - 6m
30mm
84mm
134mm
186mm
238mm
290mm
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3.3 Electrical Diagram
Key To Wiring Colours
b - Blue
r - Red
br - Brown
g/y - Green/Yellow
All other wires are black
page 17
4 Description of the Product
4.1 General Description
The Baxi EcoBlue Advance Heat Range are gas fired wall mounted powered flue condensing boilers.1. The maximum output of the boiler is :-
13 model - 13 kW
2.
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16 model - 16 kW
19 model - 19 kW
25 model - 25 kW
30 model - 30 kW
The boiler modulates automatically to the system load up to the set output. It is designed for use on Natural Gas (G20) only.3. The two illuminated User Interaction Controller push buttons provide information about the operating condition of the boiler.4. The boiler is suitable for fully pumped open vented central heating and domestic hot water systems and sealed systems.5. An information label giving details of the model, serial number and Gas Council number is situated on the front left underside of the outercase and is accessed by pulling
forward gently (Fig. 1).
6.
The boiler data label is positioned on the inside lower right-hand side of the boiler and can be seen when the outercase panel is removed (Fig. 1).7.
Fig. 1
The boiler is intended to be installed in residential/domestic environments on a governed meter supply only.8. The boiler must be installed with one of the purpose designed flues such as one of the standard telescopic flue kits detailed in the Flue Accessories & Fitting Guide.9.
All systems must be thoroughly cleansed, flushed and treated with inhibitor (see Section 5.2.6).
These Installation & Servicing Instructions MUST be read in conjunction with the Flue Accessories & Fitting Guide supplied in the Literature Pack.
page 18
4.2 Operating Principle
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Switched Live On: When the boiler switched live turns on the boiler, a 20 second check cycle takes place. If the flow temperature is less than the boiler set-point
temperature the ignition cycle will start. Pre-purge, Ignition and Burner on.
1.
Fan Pre-Purge: The boiler has a 10 second pre-purge (Fan On, Spark Generator and Gas Valve off) before the start of the ignition sequence.2. Ignition: The boiler has a 5 second ignition period (Fan, Spark Generator and Gas Valve on) and burner on occurs when a flame is detected. If a flame is not detected
within the 5 second ignition period then 4 more ignition attempts are made. If a flame is not detected after the 5 ignition attempts the boiler goes to an ignition lock-out and
an error code is displayed.
3.
Burner on: After a successful ignition, Burner on occurs (Fan and Gas Valve on, Spark Generator off). The boiler flow temperature is controlled by varying the fan speed
(and thereby the gas rate) to achieve the optimum boiler operation. If the boiler flow temperature exceeds the boiler set-point, the burner will turn off (Fan and Gas Valve
off).
4.
Overtemperature: If a boiler overtemperature event occurs (triggering the safety thermostat) the burner shuts down (Fan off and Gas Valve off). A locking signal is
generated and an error code is displayed.
5.
Lockout: If a lock-out error is displayed (Fan, Spark Generator and Gas Valve off) the boiler can only be reset by manually pressing the reset button. If 5 lock-outs are
reset within a 1 hour period then boiler becomes inoperable. It is necessary to switch off the power supply to the boiler, and when reinstated the reset button pressed again
to operate the appliance.
6.
Any lock-out errors that occur regularly will require further investigation and rectification.
Technical Enquiries: 0844 871 1555.
page 19
4.3 Main Components
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Heat Exchanger1. Combustion Control Unit2. Condensate Trap3. Exhaust Tube4. Inlet Silencer5. User Interaction Controller6. Gas Cock7. Air Pressure Switch (25 & 30 models only)8. System Drain Cock9. Air Vent10.
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4.4 Control Panel Description
4.4.1 User Interaction Controller (Control Panel)
Key to symbols (Fig. 2)
Heating Water Temperature
Sweep Key and Status Signals
RESET Reset button and On/Off Signal
Fig. 2
The User Interaction Controller has 2 illuminating push buttons which provide information about the operating condition of the boiler.1. The RESET button lights up green when the boiler has a demand for CH or DHW.2.
The button can flash in a range of colours and at different frequencies.3.
The User Interaction Controller also has one rotary knob. The rotary knob can be used to set the maximum flow temperature of the heating water.4.
Maximum temperature is 80°C
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The temperature on this rotary knob must be set to a higher temperature than the cylinder thermostat to achieve the required hot water demand.5.
4.5 Standard Delivery
The pack contains:1.
Boiler
Wall Fixing Bracket
Copper Tail (Gas Connection) and Fibre Washer
Top Flue Adaptor
Power Lead
Literature pack
Installation & Servicing Manual (including "benchmark")
User Guide Instructions
Flue Accessories & Fitting Guide
Registration Card
Fernox Leaflet
Wall Template
Product Leaflet
Package Leaflet
4.6 Accessories & Options
4.6.1 Optional Extras
Various items are available as optional extras. Flue Accessories (elbows, extensions, clamps etc.) (refer to the Flue Accessories & Fitting Guide supplied in the literature
pack.)
1.
Remote relief valve kit
1M Condensate Drain Pipe "Trace Heating" Element
2M Condensate Drain Pipe "Trace Heating" Element
3M Condensate Drain Pipe "Trace Heating" Element
5M Condensate Drain Pipe "Trace Heating" Element
page 21
5 Before Installation
5.1 Installation Regulations
WARNING
Installation, repair and maintenance must only be carried out by a competent person.
This document is intended for use by competent persons.
Installation must be carried out in accordance with the prevailing regulations, the codes of practice and the recommendations in these instructions.
Installation must also respect the following points:
This instruction manual and any other applicable documentation.
Building Regulations.
British Standards.
92/42/EEC Efficiency Directive.
2009/142/EC Gas Appliance Directive.
2006/95/EC Low Voltage Directive.
2004/108/EC Electromagnetic Compatibility Directive.
Gas safety regulations.
Water supply regulations.
5.2 Installation Requirements
5.2.1 Gas Supply
The gas installation should be in accordance with the relevant standards. In GB this is BS 6891 (NG). In IE this is the current edition of I.S. 813 "Domestic Gas
Installations".
1.
The connection to the appliance is a 22mm copper tail located at the rear of the gas service cock.2. Ensure that the pipework from the meter to the appliance is of adequate size and the demands of any other gas appliances in the property are taken into consideration.3. The gas service cock incorporates a pressure test point.4.
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5.2.2 Electrical Supply
External wiring must be correctly earthed, polarised and in accordance with relevant regulations/rules. In GB this is the current I.E.E. Wiring Regulations. In IE reference
should be made to the current edition of ETCI rules.
1.
The mains supply is 230V ~ 50Hz fused at 3A.2.
The method of connection to the electricity supply must facilitate complete electrical isolation of the appliance.
Connection may be via a fused double-pole isolator with a contact separation of at least 3mm in all poles and servicing the boiler and system controls only.
Isolation of the boiler can be checked at the electrical test point.
5.2.3 Hard Water Areas
If the area of the installation is recognised as a HARD WATER AREA then this must be taken into account when filling the system.1.
5.2.4 Bypass
An automatic bypass must be fitted on the system for protection of the boiler and pump.1.
5.2.5 System Control
The system must be fitted with thermostats and TRVs to comply with Part L of the Building Regulations.1.
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5.2.6 Treatment of Water Circulating Systems
All recirculatory water systems will be subject to corrosion unless they are flushed and an appropriate water treatment is applied. To prevent this, follow the guidelines given
in BS 7593 "Treatment of Water in Domestic Hot Water Central Heating Systems" and the treatment manufacturers instructions.
1.
Treatment must involve the use of a proprietary cleanser, such as Sentinel X300 or X400, or Fernox F3 and an inhibitor such as Sentinel X100 or Fernox MB-1.2. Full instructions are supplied with the cleansing products, for further information contact Sentinel (0800 389 4670) or Fernox (0870 870 0362).3.
Failure to flush and add inhibitor to the system will invalidate the appliance warranty.
It is important to check the inhibitor concentration after installation, system modification and at every service in accordance with the inhibitor manufacturers instructions.
(Test kits are available from inhibitor stockists.)
4.
Complete the label supplied with the inhibitor and attach to the inside of the boiler case. Detail of system treatment should be added for future reference.5. For information or advice regarding any of the above contact Baxi Customer Support 0344 871 1525.6.
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5.2.7 System Details - General
Water Circulating Systems
The appliance is suitable for use with open vent fully pumped systems and sealed systems .1.
The following conditions should be observed on all systems:
The static head must not exceed 25m of water.
The boiler must not be used with a direct cylinder.
Drain cocks should be fitted to all system low points.
All gas and water pipes and electrical wiring must be installed in a way which would not restrict the servicing of the boiler.
Position isolating valves as close to circulating pump as possible.
Pipework
The sizes of flow and return pipes from the boiler should be determined by normal methods, according to the requirements of the system. The connections on the boiler are
22mm.
1.
A 20°C (36°F) drop in temperature across the system is recommend ed for condensing boilers. Existing radiators may be oversized and so allow this, but where radiator
sizing is marginal it may be advisable to retain a system temperature drop of 11°C (20°F).
2.
In systems using non-metallic pipework it is necessary to use copper pipe for the boiler Flow and Return. The copper must extend at least 1 metre from the boiler and
include any branches (Fig. 3).
3.
Fig. 3
5.2.8 Low Head Installation / Open
Using a close coupled arrangement the minimum head is as shown in the diagrams (Figs. 4, 5& 6) subject to the following conditions:1.
The pump being adjusted to give a 20°C drop across the boiler.a. Ideally the pump should be fitted on the flow but providing that the cold feed and open vent pipe are positioned correctly
(e.g. the system is not prone to pumping over, air entrainment etc.) the pump may be fitted on the primary return pipe.
b.
The pump must be fitted in accordance with the pump manufacturer's instructions.c. The open vent pipe must be taken up from a tee in a horizontal section of the flow pipe.d.
Fig. 4
Typical Low Head Installation
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Fig. 5
If Conditions Require, This System Possible
Fig. 6
Alternative Low Head Installation
Venting
A method of venting the system during filling and commissioning is provided by an automatic air vent fitted inside the boiler. The air vent is supplied in the open position.1.
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5.2.9 Sealed Systems Details
SAFETY VALVE - A safety valve complying with the requirements of BS 6750 Part 1 must be fitted close to the boiler on the flow pipe by means of a horizontal or vertically
upward connection with no intervening valve or restrictions and should be positioned to facilitate testing. The valve should be pre-set and non-adjustable to operate at a
pressure of 3 bar (45 Ibf/in2). It must be arranged to discharge any water or steam through a pipe to a safe outlet position.
1.
PRESSURE GAUGE - A pressure gauge of minimum range 0-4 bar (0-60 Ibf/in2) with a fill pressure indicator must be fitted to the system, preferably at the same point as
the expansion vessel in an easily visible position.
2.
EXPANSION VESSEL - An expansion vessel complying with the requirements of BS 4814 must be fitted to the system by means of a connection close to the inlet side of
the circulating pump in accordance with the manufacturers instructions, the connecting pipe being unrestricted and not less than 15mm (1/2 in) nominal size. The volume of
the vessel should be suitable for the system water content and the nitrogen or air charge pressure should not be less than the system static head (See Table. 1a).
3.
FILLING POINT - A filling point connection on the central heating return pipework must be provided to facilitate initial filling and pressurising and also any subsequent
water loss replacement / refilling. The sealed primary circuits may be filled or replenished by means of a temporary connection between the primary circuit and a supply
pipe provided a "Listed" double check valve or some other no less effective backflow prevention device is permanently connected at the inlet to the circuit and the
temporary connection is removed after use. The filling method adopted must be in accordance with all relevant water supply regulations and use approved equipment. Your
attention is drawn to, for GB: Guidance G24.2 and recommendation R24.2 of the Water Regulations Guide. for IE: the current edition of I.S. 813 "Domestic Gas
Installations".
4.
MAKE UP SYSTEM - A method of replacing water lost from the system should be provided either by means of a make up vessel of not more than 3 litres (5 pints) capacity,
mounted above the highest point of the system, or by re-pressurisation of the system.
5.
VENTING - A method of venting the system during filling and commissioning is provided by an automatic air vent fitted inside the boiler. The air vent is supplied in the open
position.
6.
HOT WATER STORAGE - The hot water storage vessel must be of the indirect coil type. All components used in the system must be suitable for operation at 110°C
(230°F) and at the pressure allowed by the safety valve.
7.
Fig. 7
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Method of determining minimum valve of expansion vessel volume for sealed systems using Baxi Boilers
Static Head
(m) Vessel Charge Pressure (Bar) Initial System Pressure (Bar) Multiply Total Water Content Of System By
(Litres)
<5 0.5
0.5
1.0
1.5
2.0
0.067
0.112
0.207
0.441
<10 1.0 1.0 1.5
2.0
0.087
0.152
0.330
<15 1.5 1.5
2.0 0.125 0.265
Example :- System Volume = 75 litres
Table. 1a Vessel Charge Pressure = 1.0 bar
Initial System Pressure = 1.5 bar
Then :- 75 x 0.152 = 11.4 litres
Expansion Vessel Volume
NOTE
Where a vessel of the calculated size is not obtainable then the next available larger size should be used.
Further details of sealed system design can be obtained from BS 5449 and the British Gas publication entitled 'Specifications for Domestic Wet Central Heating Systems'.
Fig. 8
page 25
5.3 Choice of the Location
5.3.1 Location of the Appliance
Due to the high efficiency of the boiler a plume of water vapour will be discharged from the flue.
This should be taken into account when siting the flue terminal.
The boiler may be fitted to any suitable wall with the flue passing through an outside wall or roof and discharging to atmosphere in a position permitting satisfactory removal
of combustion products and providing an adequate air supply. The boiler should be fitted within the building unless otherwise protected by a suitable enclosure i.e. garage
or outhouse. (The boiler may be fitted inside a cupboard).
1.
If the boiler is sited in an unheated enclosure then it is recommended to incorporate an appropriate device for frost protection in the system controls.2. If the boiler is fitted in a room containing a bath or shower it MUST NOT BE fitted in zone 0 or 1, ONLY within the shaded area (Figs. A& Bshows zone dimensions for a
bathtub. For other examples refer to the Current I.E.E. Wiring Regulations) reference must be made to the relevant requirements.
In GB this is the current I.E.E. Wiring Regulations and Building Regulations.
In IE reference should be made to the current edition of I.S. 813 "Domestic Gas Installations" and the current ETCI rules.
3.
If the boiler is to be fitted into a building of timber frame construction then reference must be made to the current edition of Institute of Gas Engineers Publication IGE/UP/7
(Gas Installations in Timber Framed Housing).
4.
5.3.2 Data Plate
The boiler data label gives details of the model, serial number and Gas Council number and is situated on the lower right hand inside face of the outercase. It is visible
when the outercase front panel is removed (Fig. 1).
1.
5.3.3 Bath & Shower Rooms
If the boiler is fitted in a room containing a bath or shower it can be fitted in zone 2, (Figs. A& Bshows zone dimensions for a bathtub. For other examples refer to the
Current I.E.E. Wiring Regulations) reference must be made to the relevant requirements.
In GB this is the current I.E.E. Wiring Regulations and Building Regulations.
In IE reference should be made to the current edition of I.S. 813 "Domestic Gas Installations" and the current ETCI rules.
1.
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Fig. A
In GB Only
Fig. B
In GB Only
5.3.4 Ventilation
Where the appliance is installed in a cupboard or compartment, no air vents are required.1. BS 5440: Part 2 refers to room sealed appliances installed in compartments. The appliance will run sufficiently cool without ventilation.2.
page 26
5.3.5 Condensate Drain
FAILURE TO INSTALL THE CONDENSATE DISCHARGE PIPEWORK CORRECTLY WILL AFFECT THE
RELIABLE OPERATION OF THE BOILER.
CAREFUL CONSIDERATION MUST BE GIVEN TO THE POSSIBILITY OF THE PIPEWORK BEING SUBJECT
TO FREEZING CONDITIONS AND APPROPRIATE MEASURES TAKEN TO PREVENT BLOCKAGE.
CORRECT INSTALLATION IN ACCORDANCE WITH THIS SECTION WILL CONSIDERABLY MINIMISE
THE LIKELIHOOD OF BLOCKAGE AND SUBSEQUENT BOILER LOCK-OUT.
A CONDENSATE DISCHARGE PUMP AND PIPE "TRACE HEATING" ARE AVAILABLE AS ACCESSORIES
- see 5.3.5. Paragraph 12 thru.15 for further details.
The condensate discharge pipe MUST NOT RISE at any point along its length.
There MUST be a fall of AT LEAST 2.5°(50mm per metre) along the entire run EXCEPT when employing a suitable
condensate pump in basement and cellar or similar applications.
The boiler condensate trap incorporates a water seal of 75mm, therefore it is unnecessary to install an additional
air break and trap in the discharge pipework.
The condensate outlet will accept 21.5mm (3/4in) plastic overflow pipe. It is strongly recommended that this discharges internally into the household drainage
system. Where this is not possible, discharge into an outside drain is permissible providing every possible precaution is taken to prevent freezing.
1.
Ensure the discharge of condensate complies with any national or local regulations in force. BS 6798 & Part H1 of the Building Regulations give further detailed
guidance.
2.
The discharge pipe should be run in a proprietary drain pipe material e.g. PVC, PVC-U, ABS, PVC-C or PP.3. Metal pipework is NOT suitable for use in condensate discharge systems.4. The pipe should be a minimum of 21.5mm diameter and must be supported using suitably spaced clips of the correct design to prevent sagging.5. It is advisable that the full length of condensate pipe is run internally and preferably be less than 3 metres.6. Internal runs greater than 3 metres or runs in cold areas should use 32mm waste pipe.7. External runs MUST be a MINIMUM of 32mm and fully insulated with material suitable for external use.8.
Examples are shown of the following methods of termination:-
i) to an internal soil & vent pipe
ii) via an internal discharge branch (e.g. sink waste) downstream of the trap
iii) to a drain or gully
iv) to a purpose made soakaway
v) pumped into an internal discharge branch (e.g. sink waste) downstream of the trap
vi) pumped into an external soil & vent pipe
vii) to a drain or gully with extended external run & trace heating
It is strongly recommended to discharge internally into the household drainage system. If connecting to a rain water drain, that drain MUST discharge into a foul
drain.
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